CR5F-080 BK Equivalent & Substitute Parts

Part Overview

The CR5F-080 BK is a general-purpose rectifier diode manufactured by Central Semiconductor Corp, rated for 800 V DC reverse voltage and 5 A average rectified current in a through-hole DO-201 package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

The CR5F-080 BK features fast recovery characteristics with a reverse recovery time of 500 ns, suitable for applications requiring rapid switching performance. Due to its obsolete status, active equivalent parts from current manufacturers must be evaluated for design continuity and supply chain reliability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 5 A	V
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Mounting Type	Through Hole	—
Package / Case	DO-201AA, DO-27, Axial	—
Operating Temperature - Junction	-65 to 150	°C
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the CR5F-080 BK is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain the 800 V DC reverse voltage specification to ensure safe operation in the target circuit.

Current Rating: The CR5F-080 BK is rated for 5 A average rectified current. Substitute parts with equal or higher current ratings (3 A, 6 A) are acceptable, as they provide equivalent or enhanced current handling capability.

Package Type: All substitutes use through-hole axial mounting in DO-201 or DO-201AD packages, ensuring mechanical and electrical compatibility with existing PCB layouts.

Recovery Speed: The CR5F-080 BK specifies fast recovery (≤500 ns). Substitute parts with standard recovery (>500 ns) represent a functional trade-off, acceptable when switching speed is not a critical design constraint.

Temperature Range: Operating temperature ranges must encompass the application requirements. The CR5F-080 BK operates from -65°C to 150°C; substitutes with -50°C to 150°C or -55°C to 150°C ranges are acceptable for most industrial applications.

Compliance & Status: Active product status and RoHS3 compliance ensure long-term availability and regulatory alignment.

Parameter Comparison

Parameter	CR5F-080 BK	1N5407-B	1N5407-E3/54	1N5407-E3/73	60S8-TP
Manufacturer	Central Semiconductor Corp	Diodes Incorporated	Vishay General Semiconductor	Vishay General Semiconductor	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	5 A	3 A	3 A	3 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 5 A	1 V @ 3 A	1.2 V @ 3 A	1.2 V @ 3 A	1 V @ 6 A
Speed	Fast Recovery ≤500 ns	Standard Recovery >500 ns	Standard Recovery >500 ns	Standard Recovery >500 ns	Standard Recovery >500 ns
Reverse Recovery Time (trr)	500 ns	—	—	—	—
Current - Reverse Leakage @ Vr	5 µA @ 800 V	10 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V
Package / Case	DO-201AA, DO-27, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-65 to 150 °C	-65 to 150 °C	-50 to 150 °C	-50 to 150 °C	-55 to 150 °C
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

1N5407-E3/54 and 1N5407-E3/73 (Vishay General Semiconductor)

These parts are recommended as primary substitutes for the CR5F-080 BK. Both maintain the 800 V voltage rating and provide 3 A current capacity. The 1N5407 series is an active, widely available product with ROHS3 compliance and established supply chain support. The forward voltage of 1.2 V @ 3 A is comparable to the original part. Both variants are available in high inventory quantities (5985 and 5400 units respectively), ensuring procurement reliability.

The trade-off is the transition from fast recovery (500 ns) to standard recovery (>500 ns). This substitution is valid for applications where switching speed is not a critical performance parameter.

1N5407-B (Diodes Incorporated)

This part offers the same 800 V voltage rating with 3 A current capacity and active product status with ROHS3 compliance. The forward voltage of 1 V @ 3 A is lower than the original part, providing improved efficiency. However, reverse leakage current is specified at 10 µA @ 800 V, which is higher than the original 5 µA specification. This part is suitable for general-purpose rectification where leakage current is not a limiting design factor.

60S8-TP (Micro Commercial Co)

This part provides the highest current rating at 6 A, exceeding the original 5 A specification. The 800 V voltage rating is maintained, and the part carries ROHS3 compliance with active product status. The forward voltage of 1 V @ 6 A is favorable. This substitute is appropriate for applications requiring current margin or where the circuit can accommodate higher current capacity without adverse effects.

All recommended substitutes are through-hole axial devices compatible with existing PCB layouts designed for DO-201 packages.

Frequently Asked Questions (FAQ)

Q: Can the 1N5407-E3/54 directly replace the CR5F-080 BK in my circuit?

A: Yes, from a voltage and package perspective. The 1N5407-E3/54 maintains the 800 V rating and uses the same DO-201AD axial package. However, the current rating is 3 A versus the original 5 A. If your circuit draws less than 3 A average rectified current, this substitution is valid. Additionally, the recovery speed changes from fast (500 ns) to standard (>500 ns), which may affect switching performance in high-frequency applications.

Q: Why do the substitute parts have lower current ratings than the CR5F-080 BK?

A: The 1N5407 series is rated for 3 A, which is lower than the original 5 A specification. This reflects different design objectives between manufacturers. If your application requires the full 5 A capacity, the 60S8-TP at 6 A is the appropriate choice. If your circuit operates below 3 A, the 1N5407 variants are suitable.

Q: What is the difference between 1N5407-E3/54 and 1N5407-E3/73?

A: Both parts are electrically identical with 800 V, 3 A ratings and standard recovery characteristics. The suffix designates different tape reel configurations for automated assembly. From an engineering perspective, they are interchangeable. Selection depends on packaging requirements and supplier availability.

Q: Is the transition from fast recovery to standard recovery acceptable?

A: This depends on your application. Fast recovery (≤500 ns) is beneficial in high-frequency switching circuits and power factor correction applications. Standard recovery (>500 ns) is acceptable for linear power supplies, battery chargers, and general rectification where switching speed is not critical. Verify your circuit's switching frequency and recovery time requirements before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitutes (1N5407-B, 1N5407-E3/54, 1N5407-E3/73, and 60S8-TP) carry ROHS3 compliance certification, ensuring regulatory alignment with current environmental standards.

Q: What is the temperature range difference, and does it matter?

A: The CR5F-080 BK operates from -65°C to 150°C. The 1N5407 variants operate from -50°C to 150°C, and the 60S8-TP from -55°C to 150°C. If your application requires operation below -50°C, verify that the substitute part's lower temperature limit is acceptable. For most industrial and commercial applications operating above -50°C, this difference is not significant.

Q: Can I use the 60S8-TP if my circuit only needs 3 A?

A: Yes. The 60S8-TP is rated for 6 A, which exceeds the 3 A requirement. Using a higher-rated component provides current margin and does not create compatibility issues. The 800 V voltage rating and axial package remain compatible with your design.

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